Anti-Seismic system

ABSTRACT

1°—A bed of sand, who are also a natural shock-absorber; when an eathquake with upthrust, it fight by balancing at the opposite side of upthrust and lating at the construction to be solid. 2°—Above the bed sand a first slab concrete iron are disposed springs and shock-absorbers. 3°—Shock-absorbers are organized in the center of construction and extremity ordering in triangularly (named by himself TRIANGULATION). They are for principal functions slow down—detain of masses movments the furious shocks, dodge at the construction savage of springs unbending. 4°—Springs are here to absorb oscillations, flutters, earthquake at 8, 9 RICHTER scale waves P and also wind provoke by waves S 425 km/h.  
       3   a   .4   a .—The springs and shock-absorbers work agreement for stability of construction. They can be also take a different distance between them. 5°—The second slab concrete iron independent is holding springs and shock-absorbers; it is building foundation.

The invention that I gave evidence with your Department was the purefruit of the fate.

Observing my daughter and one of heir friends who played to jump on thebed, consisted of a ledger with springs and an interior-spring mattress.

The bed at any moment did not move, in spite of chocks and jumps. Iunderstood so that springs absorbed all the movements and that it wouldbe good to apply this system for the construction of buildings orskyscrapers against earth tremors.

I looked for a means for construction of buildings or towers and, it,whatever is height and weigt to resist to earthquakes.

I had a father ingineer who worked for the French State on steels; hewas himself inventor in these domains and for the armament (patent of anincendiary bomb among others).

I resumed some of the exercise books for the study of springs and theconstituents, to arrive finaly at the storehouse of this invention. InJuly when I looked at the television, I assisted an emmissionCOMPOSITION: −40% Gradient Top: tiles weight: 4320 Kg Tiles top ″ 208 KgWood top ″ 2708 Kg Wrong ceiling ″ 1472 Kg Plaster covering withpolyurethane Walls ″ 24960 Kg Partition isolate ″ 1050 Kg Rough cast <<520 << Flagstone << 49630 <<

Concrete with iron-concrete

-   -   base: concrete with iron-concrete under it, a bed sand of 40 cm        with drain at each extremity. Thi bed must be isolate between        two films of polyane and, also put in place damp.    -   Between the base and flagstone, springs and shock absorber; the        first orderly of spring around flagstone it is 10 cm towards        interior.

The demonstrate of an ground movement during earthquakes on scale IO ofMERCALI.

The bed sand worked same a chock absorber; the house stay in ahorizontal position it is only the base move. It's due to theflexibility of springs and shock absorber.

SUMMARY

1 Historical

FIG. 1 cuting plan

-   -   2 Composition and weight of house        -   place of first ordery spring

FIG. 2 cuting plan Scale IO of MERCALI

-   -   ground movement    -   3 ground movement

FIG. 3 plan of springs and shock absorbers

-   -   disposition of it's, you can see the triangulation of the shock        absorbers

FIG. 4 details of shock absorber and spring (I3 spires Position betweenthe base and the construction, the first spire hold in the concrete)

-   -   5 springs utilisation (springs shock absorbers association)    -   6 spring performance    -   7 spring: composition: calculation

FIG. 5 tridimentional plan

FIG. 7 details of same construction materials

A spring is foreseen and conceived to support certain weight to be ableto work. Without weight or not enough weight it is sluggist. Theconception studied for its work as to absorb shocks, twistings,compression and extention, to keep for the object endowed with thissystem a horizontal stability.

Whatever movements printed matter in this one when these stop the springalways resumes the original shape. The dimension of springs was studiedwith regard to the supported weight. The mathematical formula issupplied.

A clip must be placed in the middle of turns remained free, to avoidduring earthquakes or a shock a distorsion.

Shock absorbers aren't placed whith such take out that they forme inevery part a triangle, it is the best way of work them and so to allowsprings during a push rape the reaction invert namely the bounce;springs aren't set up on silent-block. Springs and shock absorbers workof concert, them some weaken the others retaining them.

It is completely possible to turn the space between the springs of adistance other than that presented on supplied plans, I call back it isonly about an example with regard to given dimension and a given weight.It is enough to adopt these springs to the weight to supported and thebase of construction of building either the tower.

On the other hand it should always owe to be set up the same disposal intriagulation of shock absorbers, the weakest point being the centre ofthe construction.

Reaction flexible-plastic of the matter: is a substance who affected alengthening proprtional at the power who is seeked.

If this power compress it, then release it, it go back is initial lengthwith a proportional reaction to effort who fulfiled on it.

-   -   SHOCK WAVE P (Primary wave or compression wave) 8 Km/s    -   SHOCK WAVE S (Secondary wave or transverse) 4 Km/s    -   WAVE (Propagated 4000 m/s granite—300 m/s in the sand)

The bed sand to be put damp on a film POLYANE (isolant), this one mustbe overflow of each size to avoid the mixing earth sand. Before to runthe primary paving stone in concrete, the bed sand to be recover of thesame film, for avoid humidity's coming up and to keep at the sand hishumidity.

SPRING: Composition; Calculation

MARAGAING Steel:

-   -   Steel mix Nickel: 18%    -   “0” Berylium: 1-2%        the “MARAGAING” steel's have a resistance of 3000 MPa

THE SPRINGS WHO AREN'T PLACED IN THIS TYPE OF CONSTRUCTION HIS“MARAGAING”. THEIR FLEXIBILITY AND THEIR RESISTANCE IS MULTIPLIED BY 4TO AN ORDINNARY STEEL.

FLEXIBILITY: ${f({RH})} = \frac{8n\quad D^{3}}{G\quad d}$

MAXIMUM CONSTRAINT:${T\quad{\max.}} = \frac{8D\quad P\quad k}{\pi\quad d^{3}}$

THESE FORMULATIONS AREN'T: Dimensionnement and calculation, Relation forthe dimensionnement of springs

-   -   RH: helical spring    -   f(RH): flexibility of helical spring    -   n: number of spires an helical spring    -   D: diameter winded of spring    -   d: diameter of wire spring    -   P: load support by the spring    -   k: corrected factor of form (1,1 to 1,3)    -   G: cuting module (COULOMB) of material

A BOEING 747 during the test require to land on the tarmac at fullcharge, require springs who resist at 1200 MPa.

1. An anti-seismic support for protecting a structure from seismic shockcomprising: a) a first layer of plastic film; b) a sand bed deposited onthe layer of film to absorb shocks, trembling and land movement, and toslow down S and P waves; c) a second layer of plastic film on top of thesand bed to keep the sand bed moist; the first layer and second layer ofplastic film being sized to overflow each side of the sand bed; d) afirst reinforced concrete slab cast over the second layer of plasticfilm; e) a plurality of maragaing steel springs and shock absorbers inan array of rows and columns across the first reinforced concrete slab;f) a second concrete slab on top of the array of springs and shockabsorbers; the structure to be protected being mounted on the secondconcrete slab.
 2. The support of claim 1, in which the plastic film ispolyane film.
 3. The support of claim 1 in which the sand layercomprises a layer of non washed sand of 40 centimeter thickness.
 4. Thesupport of claim 1 in which the maragaing steel springs comprise amixture of 18% nickel and 1-2% berylium with the steel.
 5. The supportof claim 4, in which the maragaing steel springs further comprise 0.5%of bismuth
 6. The support of claim 1, further comprising the step ofplacing drainage outside the first layer of plastic film.
 7. The supportof claim 1, in which the thickness of the first concrete slab is 10centimeters.
 8. The support of claim 1, in which the outermost rows andcolumns of springs and shock absorbers are inset 60 centimeters fromedges of the first concrete slab.
 9. The support of claim 1, in whichthe outermost rows and columns of springs and shock absorbers are inset10 centimeters from edges of the second concrete slab.
 10. The supportof claim 1, in which the springs are set into the first concrete slabapproximately 5 centimeters.
 11. The support of claim 1, in which thesprings are set into the second concrete slab approximately 5centimeters.
 12. The support of claim 1 in which each of the pluralityof springs has 13 turns and is 65 centimeters in length, with anexterior diameter of 17 centimeters, an interior diameter of 11centimeters, and a wire cross-section diameter of 30 millimeters. 13.The support of claim 1, in which each of the plurality of shockabsorbers is 55 centimeters in length, compressed to 50 centimetersbetween the two concrete slabs.
 14. The support of claim 1, in which theshock absorbers are mounted upon silent blocks.
 15. The support of claim14, in which each of the silent blocks is a square of 15 centimeters,pierced by a plurality of holes
 16. The support of claim 15, in whichthe silent blocks are fastened to the concrete slabs by bolts set intothe concrete while fluid, passing through the plurality of holes in thesilent blocks.
 17. The support of claim 14, in which the silent blocksare 5 centimeters in height.
 18. The support of claim 1, in which theshock absorbers are triangulated in a pattern centered on the center ofthe array.
 19. The support of claim 1, in which the shock absorbers arearranged at least on the center of each end column of the array.
 20. Thesupport of claim 1, in which the array of springs and shock absorberscomprises 156 springs and 15 shock absorbers in 9 rows and 19 columns,and the shock absorbers are placed in: first, tenth and nineteenthcolumns, fifth row; second and eighteenth columns, second and eighthrows; sixth and fourteenth columns, first and ninth rows; and eighth andtwelfth columns, third and seventh rows.
 21. The support of claim 1, inwhich the rows and columns of the array of springs and shock absorbersare arranged on one-meter spacing.
 22. The support of claim 1, in whichat least some of the springs have a clip constraining a plurality ofmiddle turns, to avoid distortion during earthquakes or shock.
 23. Thesupport of claim 1, in which the structure is a building.
 24. Thesupport of claim 1, in which the structure is a bridge.
 25. A method ofconstructing an anti-seismic support for a building, comprising thesteps of: a) preparing the land on which the structure is to be built;b) placing a first layer of plastic film on the cleared land; c)depositing a sand bed on the layer of film to absorb shocks, tremblingand land movement, and to slow down S and P waves; d) placing a secondlayer of plastic film on top of the sand bed to keep the sand bed moist;the first layer and second layer of plastic film being sized to overfloweach side of the sand bed; e) casting a first reinforced concrete slabcast over the second layer of plastic film; f) placing a plurality ofmaragaing steel springs and shock absorbers in an array of rows andcolumns across the first reinforced concrete slab; g) placing a secondconcrete slab on top of the array of springs and shock absorbers; h)mounting the structure to be protected on the second concrete slab. 26.The method of claim 25, in which the plastic film is polyane film. 27.The method of claim 25 in which the maragaing steel springs comprise amixture of 18% nickel and 1-2% berylium with the steel.
 28. The methodof claim 27, in which the maragaing steel springs further comprise 0.5%of bismuth
 29. The method of claim 25, further comprising the step ofplacing drainage outside the first layer of plastic film.
 30. The methodof claim 25, in which the outermost rows and columns of springs andshock absorbers are inset from edges of the first concrete slab and thesecond concrete slab.
 31. The method of claim 25, in which the springsare set into the first concrete slab and the second concrete slab. 32.The method of claim 25 further comprising the step, before step (f) ofcalculating required dimensions of the springs from a maximum weight ofthe structure by a method comprising the steps of: i) dividing theweight of the structure by the number of springs in the array giving aload to be supported by each spring; ii) adding a determined safetyfactor to the load; iii) calculating the dimensions from the formula:MaxLoad=8DPk/πd ³ where D is a diameter of the spring, d is a diameterof wire in the spring, P is the load to be supported by the spring, k isa correction factor of form.
 33. The method of claim 25, in which theshock absorbers are mounted upon silent blocks.
 34. The method of claim33, further comprising the step of fastening the silent blocks to theconcrete slabs by bolts set into the concrete while fluid, passing aplurality of holes in the silent blocks.
 35. The method of claim 25, inwhich the shock absorbers are triangulated in a pattern centered on thecenter of the array.
 36. The method of claim 25, in which the shockabsorbers are arranged at least on the center of each end column of thearray.
 37. The method of claim 25, in which the array of springs andshock absorbers comprises 156 springs and 15 shock absorbers in 9 rowsand 19 columns, and the shock absorbers are placed in: first, tenth andnineteenth columns, fifth row; second and eighteenth columns, second andeighth rows; sixth and fourteenth columns, first and ninth rows; andeighth and twelfth columns, third and seventh rows.
 38. The method ofclaim 25, in which at least some of the springs have a clip constraininga plurality of middle turns, to avoid distortion during earthquakes orshock.